Goldema/Ema

`mql5
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
input int EMAFastPeriod = 9;
input int EMASlowPeriod = 15;

double EMAFastCurrent, EMAFastPrevious;
double EMASlowCurrent, EMASlowPrevious;
double VWAP_Value;

//+------------------------------------------------------------------+
//| Expert tick function                                         |
//+------------------------------------------------------------------+
void OnTick()
{
   int handleEMAFast = iMA(NULL, 0, EMAFastPeriod, 0, MODEEMA, PRICECLOSE);
   int handleEMASlow = iMA(NULL, 0, EMASlowPeriod, 0, MODEEMA, PRICECLOSE);

   EMAFastCurrent = iMAOnArray(handleEMAFast, 0, 0);
   EMASlowCurrent = iMAOnArray(handleEMASlow, 0, 0);

   EMAFastPrevious = iMAOnArray(handleEMAFast, 0, 1);
   EMASlowPrevious = iMAOnArray(handleEMASlow, 0, 1);

   // Calculate VWAP
   double cumulativePriceVolume = 0;
   double cumulativeVolume = 0;

   for (int i = 0; i < 14; i++)  // Assuming 14 bars for VWAP period
   {
      double typicalPrice = (High[i] + Low[i] + Close[i]) / 3.0;
      cumulativePriceVolume += typicalPrice * Volume[i];
      cumulativeVolume += Volume[i];
   }

   VWAP_Value = cumulativePriceVolume / cumulativeVolume;

   // Check crossover conditions
   if (EMAFastPrevious < EMASlowPrevious && EMAFastCurrent > EMASlowCurrent && VWAP_Value > Close[1])
   {
      // Place Buy order
   }
   
   if (EMAFastPrevious > EMASlowPrevious && EMAFastCurrent < EMASlowCurrent && VWAP_Value < Close[1])
   {
      // Place Sell order
   }
}

//+------------------------------------------------------------------+